Image from page 165 of “Elementary and dental radiography” (1913)

Image from page 165 of “Elementary and dental radiography” (1913)
Dental Care
Identifier: elementarydental00rape
Title: Elementary and dental radiography
Year: 1913 (1910s)
Authors: Raper, Howard Riley, 1886-1978
Subjects: Radiography, Dental
Publisher: New York, Consolidated dental mfg. co. [etc., etc.]
Contributing Library: Columbia University Libraries
Digitizing Sponsor: Open Knowledge Commons

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Text Appearing Before Image:
diately began to wonder whether or not 1 was about todiscover an authentic case of congenital absence of a first molar. I sayauthentic, because in records of this kind it is not always that one maybe sure that the history is authentic. But in this particular case therecan be no doubt. The child was the sister of another girl in my care andhad been under my observation since she was four years of age. I havecasts of her mouth at the age of five, which show the primary denturecomplete. I may add also that there never had nor has been any caries,and consequently there was no possibility that a molar had been extracted,a suspicion always warranted when we find a first molar absent from the 154 DEXTAL KADlOCR.llIIY mouth of an adult. An ordinary small mouth radiograph was made, andwhile it did not disclose the shadow of a molar, neither did it satisfac-torily show what really existed. I therefore determined to have a largeradiograph made, so that we might have a picture of the entire bone.

Text Appearing After Image:
Fig. D.atient. Left side. Same molars absent. (Radiograph by McKce, of New York.) The patient was sent to Dr. M. I. Schamberg. who made radiographsof both sides of the mandible, that we might compare them. The radio-giaphs are reproduced in bigs. A and 15. My surprise may be imaginedwhen I found that in the region which should have been occupied bythe second bicuspid and the first molar, there was a well-defined com-posite odontoma. And perhaps even more astonishing is the positionof the molar lying distally of the tumor. Whether this tooth, which isseen lying horizontally in the bone, is the first molar or the second molar,is a question that has been raised by an orthodontist of national reputa-tion, a man of keen judgmenl and well informed as to tooth forms. While1 am willing to admit that this looks more like a first than a secondmolar ially when we compare with the normal side (Fig- B), still THE USES OF THE RADIOGRAPH IN DENTISTRY 155 I very much doubt that it is the first molar.

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